Hi, I'm seeing the following crash happen for a little more than 12% of my users on the 2.5.0 version of the SDK. I upgraded from 1.14.0 of the SDK before that, so I'm not sure when this was introduced. I will attempt to fix by upgrading to an even newer version of the SDK.

Stack trace

Caused by java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference
at android.view.View.findFrameMetricsObserver(View.java:7279)
at android.view.View.removeFrameMetricsListener(View.java:7250)
at android.view.Window.removeOnFrameMetricsAvailableListener(Window.java:886)
at androidx.metrics.performance.DelegatingFrameMetricsListener.remove(JankStatsApi24Impl.kt:253)
at androidx.metrics.performance.JankStatsApi24Impl.removeFrameMetricsListenerDelegate(JankStatsApi24Impl.kt:126)
at androidx.metrics.performance.JankStatsApi24Impl.setupFrameTimer(JankStatsApi24Impl.kt:107)
at androidx.metrics.performance.JankStats.setTrackingEnabled(JankStats.kt:129)
at com.datadog.android.rum.internal.vitals.JankStatsActivityLifecycleListener.onActivityStopped(JankStatsActivityLifecycleListener.kt:103)
at android.app.Application.dispatchActivityStopped(Application.java:282)
at android.app.Activity.onStop(Activity.java:1984)
at com.unity3d.player.UnityPlayerActivity.onStop(UnityPlayerActivity.java:78)
at com.skillz.activity.UnityGameActivity.onStop(UnityGameActivity.java:2)
at android.app.Instrumentation.callActivityOnStop(Instrumentation.java:1432)
at android.app.Activity.performStop(Activity.java:7653)
at android.app.ActivityThread.callActivityOnStop(ActivityThread.java:4402)
at android.app.ActivityThread.performStopActivityInner(ActivityThread.java:4380)
at android.app.ActivityThread.handleStopActivity(ActivityThread.java:4455)
at android.app.servertransaction.StopActivityItem.execute(StopActivityItem.java:41)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:145)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1950)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7073)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)

Reproduction steps

I'm unsure of the steps to reproduce this yet, but

Volume

10% or more.

Affected SDK versions

2.5.0

Latest working SDK version

1.14.0

Does the crash manifest in the latest SDK version?

Yes

Kotlin / Java version

Java 18

Gradle / AGP version

Gradle Wrapper 8.3

Other dependencies versions

No response

Device Information

No response

Other relevant information

No response